1
Osamu Kawakubo, Toshiyuki Kashiwagi, Koichi Yasuda, Masahiko Kaneko: Reduced thickness of a light transmissive layer for a high density optical disc. Sony Corporation, William S Frommer, Matthew K Ryan, Frommer Lawrence & Haug, June 12, 2001: US06246656 (87 worldwide citation)

An optical recording medium is provided which achieves a higher recording capacity. This optical recording medium includes a base formed of thermoplastic resin which has a thickness ranging from between approximately 0.3 to 1.2 mm, a guide groove formed on the base, an information recording layer fo ...


2
Yutaka Kasami, Koichi Yasuda, Atsushi Fukumoto, Shigeki Takagawa: Method of and apparatus for initializing multi-layer optical recording medium. Sony Corporation, Hill & Simpson, June 16, 1998: US05768221 (45 worldwide citation)

A multiple-recording-layer optical recording medium has a plurality of recording layers to be initialized by exposure to light, with a transparent layer interposed between the recording layers. Light is applied simultaneously to the to the recording layers to initialize the recording layers simultan ...


3
Koichi Yasuda, Kotaro Kurokawa, Yuji Kuroda: Multi-layer optical disc and recording/reproducing apparatus. Sony Corporation, Sonnenschein Nath & Rosenthal, April 24, 2001: US06221455 (37 worldwide citation)

A multi-layered optical disc having superior recording/reproducing characteristics, in which the recording density in three-dimensional direction can be increased to increase the recording capacity, and its manufacturing method. A multi-layered optical disc


4
Koichi Yasuda, Kotaro Kurokawa: Multi-layered optical disc. Sony Corporation, Sonnenschein Nath & Rosenthal, January 28, 2003: US06511788 (31 worldwide citation)

A multi-layered optical disc having its recording unit comprised of plural information recording layers, in which two or more information recording layers are layered on a substrate 0.3 to 1.2 mm in thickness, with the interposition of a transparent layer, to from a recording unit, a light transmitt ...


5
Osamu Kawakubo, Toshiyuki Kashiwagi, Koichi Yasuda, Masahiko Kaneko, Mitsuo Naito, Motohiro Furuki: Optical recording medium and optical disk apparatus. Sony Corporation, William S Frommer, Frommer Lawrence & Haug, October 26, 1999: US05972459 (31 worldwide citation)

An optical recording medium is provided which achieves a higher recording capacity. This optical recording medium includes a base formed of thermoplastic resin which has a thickness ranging from between approximately 0.3 to 1.2 nm, a guide groove formed on the base, at least a reflective film and a ...


6
Koichi Yasuda: Optical disc. Sony Corporation, Hill & Simpson, April 21, 1998: US05741603 (16 worldwide citation)

An optical disc comprising transparent substrate, a phase-changing material layer disposed on the transparent substrate and made of a material which is phase-changeable by radiation of a light beam, a reflecting film layer disposed on the phase-changing material layer, and a cooling layer disposed b ...


7
Satoru Kitahara, Koichi Yasuda, Toshio Izu: Split bobbin and coil device. TDK Corporation, Armstrong Nikaido Marmelstein Kubovcik & Murray, May 8, 1990: US04924200 (13 worldwide citation)

In a split bobbin designed to be rotatably mountable on a core and attached to a bobbin holding base after specific winding of coils, the split bobbin has collars at least at its both ends and cutout sections at least at two places in the outer periphery of these collars. In these cutout sections ar ...


8
Takayuki Suda, Koichi Yasuda: Coil unit. TDK Electronics, Robert Scobey, August 23, 1983: US04400674 (12 worldwide citation)

A coil unit formed of a coil-wound inner core partially circumferentially encased by an outer core. The coil unit is mounted on a plate with the outer core externally exposed and covering the lead-in wires to the coil which are adhered to contacts on the plate.


9
Masahiro Hashizume, Hiroshi Kimura, Hiroshi Ishida, Masanobu Maeshima, Koichi Yasuda, Shigeki Hayashi, Hiroshi Kubota, Osamu Yoshimura, Susumu Taniguchi, Yasuo Hatate: Image-forming machine with toner image transfer means. Mita Industrial, Beveridge DeGrandi Weilacher & Young, August 9, 1994: US05337128 (11 worldwide citation)

An image-forming machine equipped with a transfer device of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed, and at a greater distance than the thickness of a transfer ...


10
Terumasa Kitahara, Koichi Yasuda: Semiconductor integrated circuit device with enhanced layout. Fujitsu, Arent Fox Kintner Plotkin & Kahn, March 23, 2004: US06710371 (11 worldwide citation)

There is provided a semiconductor integrated circuit device wherein functional circuit groups are arranged on a chip in a direction spreads, which aims to enhance layout efficiency and to prevent deterioration of element characteristics. A unit wiring region IL